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No. mam; V PATENTBD JAN. 12, 1904. K. KALTSOHMID.

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No. 749,615. PATBNTED JAN, 12, 1904.

KALTSOHMID.

A1) IRON. APPLICATION FILED SEPT. 12. 1902.

N0 MODEL. 4 SHEETS-SHEET 2.

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, PATENTED JAN.:12, 1904. K. KALTSGHMID.

SAD IRON.

APPLICATION FILED SEPT. 12, 1902.

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No. 749,615. PATENTED JAN. 12, 1904.

K. KALTSOHMID.

SAD IRON.

APPLICATION FILED SEPT. 12. 1902.

N0 HODELP 4 SHEETS-$111811?! 4.

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UNITED STATES Patented January 12, 1904.

PATENT OFFICE.

SAD-

IRON.

SPECIFICATION forming part of Letters Patent No. 749,615, dated January 12, 1904. Application filed Faeptember 12, 1902. Serial No. 123,090. (No model.)

To all whom, it may "1 concern:

Be it known that I, KARL KALTsoHMID, a subject of the German Emperor, and a resident of Oberriexingen, in the Kingdom of Wurtemberg, German Empire, have invented new and useful Improvements in Sad-Irons, of which the following is a full, clear, and exact specification.

My invention relates to sad-irons which are heated by means of combustible liquids, preferably alcohol; and the invention consists of a body of a sad-iron having a cavity or heating-chamber and provided with openings at its bottom and top for supplying air at the bottom and allowing the products of combustion to escape at the top, a fluid reservoir arranged outside of the sad-iron, a vapor-generator chamber arranged outside of the cavity or heating chamber of the sad-iron, but in communication with this heating-chamber, a

wick-tube containing a wick connecting the fluid-reservoir with the vapor-generator, a perforated burner-tube near the bottom of the body of the sad-iron, a supply-tube connecting the vapor-generator with the burner-tube, and an upright heat-transmitting plate'connected with the vapor-generator, supply-tube, and burner-tube heated by the last jets of the burner-tube, so that when the burner is once ignited. a continued vaporization takes place by the heat conduction of the upright plate to the vapor-generator combined with the heat. produced by the hot-air current entering the vapor-generator chamber; and the invention consists of further details of construction which will be more fully described hereinafter and finallypointed out in the claims.

In the accompanying drawings, Figure 1 is a vertical longitudinal section. Fig. 2 is a plan view showing the vapor-generator chamberin section. Fig. 3 is a detail view, partly in section and partly in elevation, of the reservoir, vapor-generator, and connecting-plate drawn on a larger scale. Fig. 4 is a horizontal section of Fig. 3, taken on line 4 4, showing the connecting-plate as connected with the supply-tube. Fig. 5 is a vertical transverse section of Fig. 3, taken on line 5 5, showing the connecting-plate as connected with the vapor-generator. Flg. 6 1s a rear view. Flg.

7 shows a vessel for preheating the vaporgenerator preparatory to putting the sad-iron in operation. Fig. 8 shows a modified form with a vapor-generator chamber extending downwardly. Fig. 9 shows a modified form with the vapor-generator chamber arranged so as to extend partly above the top of the sad-iron and partly below, and Fig. 10 shows another form showing the upwardly-extending vapor-supply tube on the outside of the sad-iron body.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, a represents the body of the sad-iron having a cavity or heating-chamber b, to which is connected a chamber o, in which is placed a vapor-generator d, which is supplied with alcohol or other combustible liquid from a reservoir 6 by means i of a wick in a wick-tube, which connects the reservoir 6 and vapor-generator d. The alcohol drawn up by the wick is vaporized in the vapor-generator d, and this vaporized alcohol passes, by means of the conducting-tube f, to a burner-tube 9, provided with perforations g, said tube being located near the bottom of the body of the sad-iron, where the vapor is burned in the form of thin flames or jets. The heating-chamber Z; is provided with openings at its bottom and top for supplying air to the burner g at the bottom and allowing the products of combustion to escape at the top.

To the burner-tube g,vapor-generator (Z, and supply-tubef is connected by soldering a connecting piece or plate m, made of iron, brass, or other suitable heat-conducting material, to transmit heat by conduction from the burnertube g to the vapor-generator d to aid that part of the hot-air current produced by the burner and entering the vapor generator chamber in vaporizing therein the liquid fuel after the burner has been ignited. The connecting-piece wt, preferably reinforced by the enlarged portion on, as shown in Figs. 3, 4, and 5, is connected by soldering at one side to the conducting-tube f and at the other side to the back part 71., which back part is fastened to the sad-iron body by means of screws 2" and 7c and provided with an opening Z (shown clearly in Fig. 6) for entrance of a cast or pressed shallow vessel n, made of suitable material and of the form shown in Fig. 4 of horseshoe shape, one leg of the same being adapted to be placed at each side of the burnertube.

When it is desired to use the sad-iron, this vessel is filled with alcohol and introduced in the opening Z of back it of the body a of the sad-iron. The alcohol in the vessel is then ignited and the vapor-generator d heated by the rising hot-air currents and the connectingplate m heated by contact with the flames of the burning alcohol in the vessel, whereupon the liquid fuel is drawn by the wick from the reservoir 6 to the vapor-generator (Z, the vapors passing down through the supply-tube f to the burner-tube g, being ignited as they are emitted through jet-holes of the burner-tube.

ters Patent When the alcohol in the vessel is consumed, the vessel is taken out and the heat generated by the jets of the burner-tube heats the body of the sad-iron. The further vaporization of the liquid fuel drawn into the vapor-generator is caused partly by metallic conduction in the connecting piece or plate m, heated by the rear jets of the burner-tube, and partly by that part of the hot products of combustion entering the vapor-generator chamber rising at both sides of the vapor-generator and overlapping the sides of the same, whereby the supply of vapor is continued, the jets kept burning, and the iron heated. The supply-tube f being soldered to the heat-transmitting piece or plate on, connecting the burner-tube g and vaporgenerator cl, the vapors entering the burner tube are strongly heated, whereby a higher heating efiect is attained and a smaller quantity of heating material required than when the gases are not previously heated.

Sufficient vaporization is obtained by the combined effect of the small quantities of heated combustion-current passing into the vaporgenerator chamber 0 and by the heat radiated by the few flames burning below the connecting-piece m and transmitted to the vaporgenerator d by such connecting-piece. The vapor-generator is thereby sufliciently heated, but prevented from being overheated, as the greater quantity of the combustion-current generated by the burner does not pass to the vapor-generator chamber and around the vapor generator, but escapes through the openings provided at the top of the heatingchamber. By this arrangement a sufficient vaporization is secured, while an overheating of the vapor-generator is prevented. Moreover, loss of heat is obviated and the heating of the sad-iron begun by the combustion of alcohol in the heating-chamber itself.

The vapor-generator chamber may also be arranged so as to extend downward from the top of the sad-iron into the interior, as shown in Figs. 8 and 10, which permits the sad-iron being made lower, and also be arranged to extend partly above the top of the sad-iron and .partly below, as shown in Fig.9. The section of the vapor-generator chamber may be of any suitable form and may be placed at any part of the sad-iron.

If the sad-iron is to be made very low, so as to render it impossible to put the reservoir at a lower point than the vaporgenerator, as shown in Fig. 10, the tube f, connecting the vapor-generator and the burner-tube, must be extended up to a point above the reservoir in order to prevent the liquid fuel from flowing from the Vapor-generator to the burnertube while the sad-iron is not in operation. After having used the sad-iron the liquid fuel may also be prevented from flowing down by her- 1 metically closing the air-supply opening of the reservoir.

I clalm as new and desire to secure by Let- 1. The combination, with the body of a sad- 6 iron, having a cavity or heating-chamber and provided with openings at its top and bottom,

of a fluid-reservoir arranged outside of said body, a vapor-generator chamber arranged outside of the cavlty or heating-chamber of i the sad-iron, but in communication with this cavity or heating-chamber, a vapor-generator in said vapor-generator chamber, a wick-tube containing a wick connecting the flu1d-reser- 'voir with the vapor-generator, a perforated burner-tube near the bottom of the body of the sad-iron, a supply-tube connecting the vapor-generator with the burner-tube, and an upright heat-transmitting plate connected with the vaporgenerator, supply-tube and burner-tube, substantially as set forth.

2. The combination, with the body of a sadiron, having a cavity or heating-chamber and provided with openings at its top and bottom, and with a vapor-generator chamber arranged at the upper rear end outside of the cavity or heating-chamber of the sad-iron, but in communication with the same, of a fluid-reservoir located outside of the body of the sad-iron, a vapor generator in said vapor generator chamber, a wick-tube containing a wick connecting the fluid-reservoir with the vaporgenerator, a perforated burner-tube near the bottom of the body of the sad-iron, a supplytube connecting the vapor-generator with the burner-tube, and an upright plate heated by the rear jets of the burner-tube, connected with the vaporgenerator, supply-tube and burner-tube, for transmitting heat from the burner-tube to the vapor-generator, for vaporizing the fluid in the same, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

KARL KALTSCHMID.

Witnesses:

ERNST ENTENMANN, EDWARD H. OZMUN.

IOC

IIC 

